20220239 Ver 1_More Info Received_20220408 (2)

Strickland, Bev
From: Bob Zarzecki <[e-mail]>
Sent: Friday, April 8, 2022 5:00 PM
To: Cohn, Colleen M; Tommy Craven
Cc: Norton, April R CIV USARMY CESAW (USA)
Subject: [External] RE: Kinsley Subdivision DWR#20220239
Attachments: 13461_03-26-2018 (2).JPG; 13461_03-26-2018 (16).JPG; 13461_03-26-2018 (12).JPG
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Colleen:
Good catch on Question #3. Tommy is going back to his guys to see what they can do. We hope to
have you the information on Monday morning.
Honestly, whatever they do will be a great improvement from the current situation as that existing 30"
CMP is not functioning, connects to different types and sizes of failing pipe sections, and a ton of
random fill material essentially just dumped over the stream. See attached photos all taken in this
area of the existing crossing and future impact #11.
BOB ZARZECKI
Wetlands Department Manager/Principal
Soil & Environmental Consultants, PA
From: Bob Zarzecki
Sent: Friday, April 8, 2022 3:48 PM
To: 'Cohn, Colleen M' <[e-mail]>; 'Tommy Craven' <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: RE: Kinsley Subdivision DWR#20220239
Importance: High
Colleen:
I've copied the project engineer Tommy Craven on this response and asking him to respond to
questions 2 & 3.
As to question 1, Impact #1 crossing was measured as per the attached exhibit. The head of the
stream bends to the southeast. It is close at 76 degrees, but we felt that it just met the requirement.
The buffer impacts at 0.2403 acres are also under 1/3 acres. I've found that crossing meandering
stream origins like this can be tricky compared to a simply crossing with retained stream sections
above the origin.
Attached are some photos of the stream origin and stream. It was excavated and channelized from
past farming practices. It was probably excavated down to seasonal groundwater to help provide
water to the stock pond below.
i

One thing to point out here is that we took into consideration the fact that we were crossing at the
origin, and as such located a Primary SCM across the road from it, such that the road essentially acts
like a pond dam/road crossing, even though the actual impoundment structure is outside the road
footprint. The discharge from the Primary SCM will also help to ensure hydrology is maintained to the
retained stream section below. The end result will be a pond (Primary SCM), road, +/- 200 If of
stream, then the farm stock pond, which then drains directly to a culvert under North Main Street.
BOB ZARZECKI
Wetlands Department Manager/Principal
Soil & Environmental Consultants, PA
North Quarter Office Park
8412 Falls of Neuse Road, Suite 104
Raleigh, NC 27615
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From: Cohn, Colleen M <[e-mail]>
Sent: Friday, April 8, 2022 2:51 PM
To: Bob Zarzecki <[e-mail]>
Cc: Norton, April R CIV USARMY CESAW (USA) <[e-mail]>
Subject: Kinsley Subdivision DWR#20220239
Good afternoon,
I am reviewing the above reference application, and some additional information is required to complete the review:
1) Please provide additional details on how Road Crossing Impact #1 meets the definition for a perpendicular
crossing of streams or other surface waters. [15A NCAC 02B .0714(11)(y)]
2) Please provide additional information on the SCM and stormwater discharge entering the proposed culvert
under the Road Crossing in Impact #1. Will large storm events result in high velocity discharge from the pipe and
increase the potential for scouring? Will a rip rap dissipator pad be used at the end of the culvert as it discharges
to the stream?
3) Am I understanding correctly that the 30" pipe between impacts 11 and 12 is to be removed completely and not
replaced? Will hydrology between the two sections be maintained?
Thanks,
Colleen Cohn
Environmental Specialist II
North Carolina Department of Environmental Quality
Division of Water Resources
Raleigh Regional Office
380o Barrett Drive
Raleigh, NC 27609
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